| 
 Thickness  | 
 0.71mm(2PT)  | 
 1.07mm(2PT)  | 
 1.42mm(2PT)  | 
 2.10mm(2PT)  | 
| 
 Height  | 
 22.8~30.0mm  | 
|||
| 
 Specification Thickness  | 
 Number  | 
 Explain  | 
 Remark  | 
| 
 0.71mm  | 
 EL-90  | 
 Blue-black Body  | 
 Core Hardness Hrc 41~43  | 
| 
 ELD-90  | 
 White Body  | 
 Core Hardness Hrc43~45  | 
|
| 
 EL-70  | 
 Taiwan  | 
 Core Hardness Hrc38~39(Medium)  | 
|
| 
 EL-80  | 
 Taiwan  | 
 Core Hardness Hrc35~36(Soft)  | 
|
| 
 1.07mm  | 
 ELD-70  | 
 Blue-black Body  | 
 Core Hardness Hrc37  | 
| 
 ELD-80  | 
 Blue-black Body  | 
 Core Hardness Hrc39  | 
|
| 
 1.42mm  | 
 ELC-70  | 
 Blue-black Body  | 
 Core Hardness Hrc36  | 
| 
 2.1mm  | 
 ELB-70  | 
 Blue-black Body  | 
 Core Hardness Hrc35  | 
| 
 0.71mm  | 
 EV-90  | 
 Blue-black Body  | 
 Core Hardness Hrc41~43(Top Thin Creasing)  | 
Thickness tolerance range of CUTTING rules
| ThicknessExpression | Reference | InternationalStandard | Corporate Standards | |
| Tolerance | Min~Max | |||
| 0.45 | 0.44 | ±0.025 | ± 0.010 | 0.430~0.450 | 
| 2PT | 0.71 | ±0.030 | ± 0.010 | 0.700~0.720 | 
| 3PT | 1.05 | ±0.040 | ± 0.010 | 1.050~1.070 | 
| 4PT | 1.42 | ±0.050 | ± 0.015 | 1.395~1.425 | 
The difference between high-edged and low-edged knives is that the high-edged knife is based on the low-edged knife and then grinds off the corners on both sides to make its blade narrower, generally about 2mm.